# Undertow: Crypto Flows — See the DATA, guess the MOVE > See the DATA, guess the MOVE (iPhone/iPad app by YILDIRAY AYDIN.) - Source: https://appshunter.io/ios/app/undertow-crypto-flows/id6795690554 (this page in markdown: same URL + `.md`) - Developer: [YILDIRAY AYDIN](https://appshunter.io/developer/6793885512) - Category: Finance - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 15.1 · 44 MB - Languages: American English - Released: 2026-08-10 - Data updated: 2026-10-09 - User reviews in markdown: https://appshunter.io/ios/app/undertow-crypto-flows/id6795690554/reviews.md ## What is Undertow? Undertow measures what price charts do not show: how much of each crypto asset actually sits in exchange wallets, and what happens when that amount moves. We read balances directly from public blockchains every 10 minutes, across 203 verified exchange wallet addresses. Nothing is licensed from a third party, which is why we can show you exactly which addresses we track and where our data has gaps. WE TELL YOU. YOU DON'T HUNT. Nobody opens an app to scan tables. Radar is a feed of measured anomalies: when an exchange reserve moves unusually, when whales cluster, when liquidations cascade, it arrives with the numbers already in it. Notifications have a daily cap and quiet hours. If you set a watchlist, only those assets reach you. WHAT YOU GET - Exchange reserves: 24h, 7d and 30d change for every tracked asset, ranked and scored against that asset's own history - Stablecoin Barometer: total stablecoins held on exchanges, broken down by exchange so you see not just how much buying power is waiting, but where - Whale transfers: classified, with internal rotations and bridge movements filtered out, and an option to hide stablecoins - Derivatives: funding, open interest and live liquidations - Premiums: cross-exchange spreads and stablecoin peg deviation - Token unlocks: with the share of circulating supply, not just the amount MEASUREMENT, NOT PREDICTION Undertow never tells you what will happen. A rising exchange balance can mean coins arrived to be sold, or that an institution moved custody. We show the measurement and the context, and leave the call to you. There are no signals, no scores, no price targets. Every number is a historical measurement you can verify. Each screen also states what it CANNOT see. Sales made over the counter or on decentralised exchanges leave no trace in these numbers, and we say so. PRIVACY BY SUBTRACTION No wallet connection. No location. No contacts, camera or microphone. No advertising ID, and we do not even ask for tracking permission, because we do no tracking. No password: sign in with Google or Apple, or use the app without an account. Data not collected cannot leak. FREE AND PREMIUM Free: top assets by movement, 24h window, 60-minute delayed data, the Stablecoin Barometer, watchlist and alerts. No ads, ever. Premium: every tracked asset, every time window, real-time data, full history, exchange-by-exchange breakdown, unlimited alerts and instant notifications. Available in 12 languages. Undertow is an information and data visualisation tool. It does not provide investment advice or buy/sell recommendations. Crypto assets are high risk and you may lose the entire amount you invest. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Premium — Monthly | $8.99 | per month | | Premium — Yearly | $89.90 | per year | ## Version history (last 5 releases) ### 1.2.1 — 2026-10-05 Undertow 1.2 adds new measurements, two new languages and a faster, cleaner app. NEW • Measurement alignment — two lists built from four measurements taken from two independent sources: how much the price has been swinging (30-day volatility, downside moves and the biggest daily jump) and 30-day funding in the leveraged market. "Steady" assets sit at the calm end, "Stressed" assets at the other. Assets where all four measurements are individually at the extreme carry a 4/4 mark. The card shows how these lists behaved when tested on historical data from three exchanges, including assets that were later delisted, and states the limits plainly. It describes a measured profile, not a forecast. • Coinbase and Korea premiums — how US and Korean spot prices compare with the global market, corrected for the USDT rate. • Hyperliquid large positions — the biggest open positions on Hyperliquid, read directly from the chain, with their liquidation levels. • CME COT positioning — weekly institutional positioning in CME Bitcoin and Ether futures, from CFTC reports. • Stablecoin supply by chain — where new stablecoin liquidity is being created or bridged. • Technical indicators, rebuilt — a market breadth summary, momentum, distance from the 50- and 200-day averages, risk-adjusted momentum, distance from the recent high, volatility and strength vs BTC, all comparable across coins. • Coin page as a hub — whale and crowd positioning, aggressive buy/sell flow and recent large transfers for each asset, in one place. • Hindi and Urdu, with a full right-to-left layout for Urdu. IMPROVED • The Whales page now explains in plain words what it shows and how to read it. • Radar shows one event per asset instead of one per exchange. • A new Guide tab under More explains every screen, so the data screens stay compact. • Faster scrolling and image loading, a smaller app, and many layout and translation fixes. Available in 14 languages. Every figure remains a measurement, not a prediction. Undertow is an information and data visualization tool and does not provide investment advice. ### 1.2.0 — 2026-09-22 Undertow 1.2: new measurements and two new languages. NEW • Measurement alignment: coins where exchange reserves, trend and strength vs BTC all point the same way, up or down • Coinbase and Korea premiums • Hyperliquid large positions and CME COT positioning • Stablecoin supply by chain • Evidence-based indicators with custom sorting • Coin page: whales, taker flow and large transfers • Hindi and Urdu • New Guide tab, faster lists, many fixes Measurements, not predictions. ### 1.1.0 — 2026-09-01 Gamma exposure for BTC and ETH options — total GEX, the gamma flip level, and the strikes carrying the most gamma. This figure rests on an assumption about dealer positioning rather than a measurement, so it ships with an always-visible note explaining exactly what it does and does not show. Whales vs the crowd. Positioning now separates large position holders from all accounts, so you can see when the two disagree. Bitcoin network health: hashrate trend, transaction fees and mempool depth. DEX share of spot volume — a measure of how much trading our exchange-flow data cannot see. You now stay signed in between sessions, and every feature lives in the tab it belongs to rather than a separate menu. ### 1.0.3 — 2026-08-21 - Fixed a bug that could silently sign you out even while your saved sign-in was still valid - "Today's sharpest" on Radar now picks the genuinely most extreme measurement, not an arbitrary one - Removed the exchange selector from Technical Indicators — it never changed the values, and each row now shows which exchange's price history it came from - Technical indicator coverage widened from 234 to 267 assets - Market Sentiment is back to all four inputs after a data feed was repaired - The Stablecoin Barometer, Market Sentiment and global supply share now sit together on the Market tab instead of being split across two screens - Your watchlist moved to its own Radar tab, with a scroll-to-top button, so adding many assets no longer pushes the feed down - Updated the underlying app framework for compatibility with the latest iOS releases ### 1.0.2 — 2026-08-17 - Fixed a bug that could silently sign you out - "Today's sharpest" on Radar now picks the genuinely most extreme measurement, not an arbitrary one - Removed the exchange selector from Technical Indicators (it never changed the values); each row now shows its price source - Indicator coverage widened from 234 to 267 assets - Market Sentiment restored to all four inputs - Stablecoin Barometer, Market Sentiment and global supply share now sit together on the Market tab - Watchlist moved to its own Radar tab, with a scroll-to-top button ## Apps similar to Undertow | App | Rating | Price | Category | | --- | --- | --- | --- | | [AI Stock Forecasts: SharePreds](https://appshunter.io/ios/app/ai-stock-forecasts-sharepreds/id1602383978) | 4.4 (144) | Free | Finance | | [DragonFi – Stocks & Funds](https://appshunter.io/ios/app/dragonfi-stocks-and-funds/id6462978863) | 5.0 (4) | Free | Finance | | [GoTrading: Stock Trading App](https://appshunter.io/ios/app/gotrading-stock-trading-app/id6757144611) | 4.7 (469) | Free | Finance | | [LiteFinance](https://appshunter.io/ios/app/litefinance/id1661254805) | 4.6 (126) | Free | Finance | | [OneKey: Bitcoin & Stocks](https://appshunter.io/ios/app/onekey-bitcoin-and-stocks/id1609559473) | 4.7 (682) | Free | Finance | | [Simply Wall St](https://appshunter.io/ios/app/simply-wall-st/id1075614972) | 4.6 (2,412) | Free | Finance | ## More apps by YILDIRAY AYDIN - [ST Matrix - Spor Toto Asistanı](https://appshunter.io/ios/app/st-matrix-spor-toto-asistan/id6794286803) - [Gastro Globe - World Recipes](https://appshunter.io/ios/app/gastro-globe-world-recipes/id6794831294) - [Minilo - Learn Words & Play](https://appshunter.io/ios/app/minilo-learn-words-and-play/id6795237524) All apps by YILDIRAY AYDIN: https://appshunter.io/developer/6793885512 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-09.*